【课文讲解】
need
call sb sth / call that a hat
be rude / be rude about sth 对事很粗鲁/ be rude to sb 对人很粗鲁
don't be rude to me别对我这么粗鲁
needn't : 不必
on the chair 在椅子上
with holes in it 作定语
Jane put a piece of paper with her name and address on it into a bottle.(lesson 22)
he has been there
We had beenin the hat shop for half an hour.
bookstore书店 drugstore药店, 名词修饰名词, 一般用单数
must表示必须 / mustn't不能、不准
need的否定形式 : needn't 不必/ don't need 不需要
remark = say
regretted doing sth后悔已经做
needn't have done原本不必做, 但是做了, 强调过去的动作不必做
you needn't have bought it你原本不必买的
remind sb of sth
needn't do : 现在的动作也不必做 : you needn’t have come./ you needn’t come.
never...too...＝not...too...无论...也不为过
A man can never have too many ties.再多的领带对一个男人来说也不为过
I can never thank you too much : 感激不尽
drinking water can never be too clean饮用水越干净越好
a wife can never complain too much妻子怎么罗嗦也不为过
need : 需要
needn't : 非实义动词(助动词, 系动词, 情态动词), 属情态动词, 无时态变化, 也没有人称
don't need : 实义动词有任意一种时态, 有人称变化
need I...?(情态) / do I need...? 实义动词
情态动词后面一定要加动词原形
在实义动词后面再加一个实义动词, 就在后面加to do
need I go out? / do I need to go out? 我需要出去吗?
情态动词后面不能直接用名词做宾语
实义动词后面可以直接加名词, 故need 后面如是名词, 则这个need 为实义动词
we don't need things(名词)...
you don't need to be
例 : He____follow me .
a doesn’t need b needn’t to c didn’t need to d needs
answer: C
1、情态动词, 无时态和人称2、情态动词的疑问句和否定句都直接加not或提前3、情态动词后面只能加动词原形
needn't have done : 过去不必做, 但是做了
mustn't 不准
can't : 不可能(没有这个能力做)
you don't... : 事实 : you don’t speak English.
【Key structures】 关键句型
Must, Have to and Need
a Do you remember these sentences? (KS17)
你还记得以下句子吗?(参见第17课关键句型)
I must leave now. I have (got) to leave now. He must be a fool.
b Now study these sentences:
仔细阅读以下句子 :
I need a new hat. I must buy one. 我需要一顶新帽子. 我必须买一顶.
He needs a haircut. He must have one. 他需要理发. 他一定要理发.
I won't buy that. I don't need it. 我不会买那个, 我不需要它.
c
|
Instead of saying: 除了这种表述方法外 :
|
We can say: 还可以说 :
|
|
You needn't wait for me.
|
You needn't have waited for me.
|
|
You don't have to wait for me.
|
You didn't have to wait for me.
|
d Now compare mustn't and needn't in these sentences: 对比 mustn't和 needn't:
You mustn't make a noise. The children are asleep. 你不应吵闹, 孩子们都睡了.
You needn't drive so quickly; we have plenty of time. 你不必开得那么快, 我们有足够的时间.
Or: You don't have to(haven't got to) drive so quickly; we have plenty of time.
You mustn't smoke in a theatre. It is forbidden. 你不应该在剧场里抽烟, 这是不允许的.
You needn't come with us if you don't want to. 如果你不想去, 你不必和我们一道去.
Or: You don't have to (haven't got to) come with us if you don't want to.
must可能等于have to 表示必须, 不等于have to时表示推测
1、对现在和将来加原形
2、对正在be doing
3、对过去have done
4、对过去正在have been doing
needn’t = don’t have to / needn’t have done = didn’t have to
